Is it time to start calling out bad cyclists?

Everyone must have been shotgunning cans of special brew at breakfast this morning as it was noddergeddon on my route. There was a particular eagerness to wedge selves to the left of vehicles clearly indicating to turn left. You'd think that by adulthood, people would have spotted the correlation between a person indicating an intention via blinky lights and actually fulfilling that intention, and so making appropriate decisions as a result. I dunno.
I guess there are a variety of reasons for it, such as the sense that the extreme left of any lane is for cyclists. Silly.
Then I came within a whisker of side ramming some girl who pulled out from a side road then stopped in the middle of the lane for reasons I did not have time to ponder in depth. I would also like to thank the woman on the dutch bike who RLJd on Old Street Roundabout across my bows. That was bracing.
It's difficult in most cases to effectively communicate to the cyclist in question why what they did was perhaps unwise while you are both riding, and posting in this thread is unlikely to have much impact on their behaviour for obvious reasons, and may just increase the amount of smug in the atmosphere. However as I have bike cam footage of all the above which I can throw into my 'how not to do it' video whenever I get round to doing it, hopefully I can use these unsuspecting case studies to some good purpose eventually. I don't know if anyone has done any 'how to ride in London' type video, but a 'how not to' would also probably be a useful angle if e.g. the Evening Standard decided to run something on how to survive as a cyclist in London. Have they ever done such a thing?
On the subject of bike cams, I really thought I would be getting more bad driving than bad cycling footage, but not the case at all. I guess it's down to seasonal cycling factors, and perhaps the way I ride. Hmm hmm.

I haven't seen a 'how not to ride in London', but there's a guy on here who does a great series of videos called 'Silly Cyclists' or something similar. He takes submissions from other camera equipped riders so it might be worth doing a search and sending him some clips.